diff options
Diffstat (limited to 'sound/hda/ext/hdac_ext_controller.c')
| -rw-r--r-- | sound/hda/ext/hdac_ext_controller.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/sound/hda/ext/hdac_ext_controller.c b/sound/hda/ext/hdac_ext_controller.c index 72774119dd11..5bc4a1d587d4 100644 --- a/sound/hda/ext/hdac_ext_controller.c +++ b/sound/hda/ext/hdac_ext_controller.c @@ -271,6 +271,15 @@ int snd_hdac_ext_bus_link_get(struct hdac_bus *bus, } ret = snd_hdac_ext_bus_link_power_up(link); + + /* + * wait for 521usec for codec to report status + * HDA spec section 4.3 - Codec Discovery + */ + udelay(521); + bus->codec_mask = snd_hdac_chip_readw(bus, STATESTS); + dev_dbg(bus->dev, "codec_mask = 0x%lx\n", bus->codec_mask); + snd_hdac_chip_writew(bus, STATESTS, bus->codec_mask); } mutex_unlock(&bus->lock); |